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Chemistry

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Prudence Stiedemann

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โˆ™ 2021-10-18 18:34:16
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Cards in this guide (30)
What is a carcinogen

A carcinogen is any substance, radionuclide or radiation that is an agent directly involved in the exacerbation of cancer or in the increase of its propagation. This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes. ...

carcinogenic - causing or tending to cause cancer; "the carcinogenic action of certain chemicals"

Carcinogenesis (the creation of cancer), is the process by which normal cells are transformed into cancer cells.any substance that produces cancer

carcinogenesis - The creation of cancer cells

A chemical or physical agent that encourages cells to develop cancer.

A cancer causing agent

A substance which is known to cause cancer. For example, UV-radiation is considered to be a carcinogen and increase the risk of skin cancer

A chemical or other substance that causes cancer; tobacco smoke has more than 40 known carcinogens.

Any substance that initiates or promotes the development of cancer. For example, asbestos is a proven carcinogen.

An agent known to cause cancer; a cancer-producing substance.

carcinogenic - a carcinogen is a chemical known or believed to cause cancer in mammals. Some chemicals are proven carcinogens, but many more are suspected to be carcinogenic.

carcinogenic - a substance that has the capability of causing cancer. Read more on hazardous substances.

carcinogenic - capable of causing cancer

It is important to stress that there are various classifications of carcinogens. Over half of the almost 1,000 listed are not believed to be carcinogenic to humans (a very useful propoganda source!). From the IARC website:

Group 1Carcinogenic to humans107 agentsGroup 2AProbably carcinogenic to humans59Group 2BPossibly carcinogenic to humans266Group 3Not classifiable as to its carcinogenicity to humans508Group 4Probably not carcinogenic to humans1 A toxin linked to an increased risk of cancer

How do chemicals affect the environment

They can both help and hurt the environment. Some chemicals are necessary such as water, minerals, and the air we breathe. The exact effects depend on the exact chemicals. Some chemical waste can harm plants, wildlife, or even humans. Some chemicals such as phosphates can cause excessive red algae to grow in bodies of water. Oil and petrochemicals in the water can kill birds and fish.

What do Chemists study

Chemists study atoms and how they behave in the physical world

What is the purpose of the scientific method

The purpose of the scientific method is to remove as much human bias and opinions from science.

What do biologists study

A biologist is a scientist devoted to and producing results in biology through the study of life. Typically biologists study organisms and their relationship to their environment. Biologists involved in basic research attempt to discover underlying mechanisms that govern how organisms work. Biologists involved in applied research attempt to develop or improve medical, industrial or agricultural processes.

What do physicists study

The term "Physicist" was coined by English philosopher, priest, and historian of science William Whewell in 1840, to denote a cultivator of physics. A physicist is a scientist who study and practices physics. There are a variety of branches of physics from studies in sub atomic particles to studies of the behavior of the material of the universe as a whole.
A Physicist is a scientist who studies or practices physics, includes all branches of physics spanning from sub-atomic particles (particle physics), to the behavior of the material universe (cosmology).
Physicists study how matter and energy interact.

What is the difference between a strong base and a weak base

A "strong" acid (or base) is one that dissociates completely in dilute aqueous solution. One which does not is a "weak" acid (or base). An acid with a pKa (or a base with a pKb) lower than about -2 is considered to be a "strong" acid.

Weak acids and bases can still be quite corrosive. HF is a "weak" acid with a pKa of around 3.2 (which corresponds to only about one molecule out of every 38 or so being dissociated), but it's pretty terrible stuff and will dissolve even glass.

What is base dissociation constant

a base dissociation constant is the rate of the equilibrium that is reached when a weak base is added to water, producing it's conjugate acid and hydroxide ions.

Which of the following is a strong acid

HCI (Hydrochloric acid)

What kind of fraction has a value less than 1

1/2 is less than one.

What is the purpose of engineers

Engineers design new products that you buy. They design everything from bridges to planes to computers.

How could the government enforce ethical standards of scientific experiments

the government could take away research funds if ethical standards are not met

Which sentence suggests the least amount of psychic distance

Katia was going to teach them a lesson they'd never forget.

No way, she thought, this is ridiculous.

How has the scientific community addressed the safety of chemicals

scientists test and continue to retest both new and old chemicals even if they have been tested before

How does understanding chemistry help us in the real world

It helps us make informed decisions.

Why are carcinogens a concern to people

They Can Cause Cancer

What ideas about the atom changed when new evidence is discovered

Atoms cannot be divided

How have chemists helped fight leukemia

Chemists have developed medicine to fight leukemia.

What is Ka for H2CO3 aq H aq HCO3 aq

Ka= [h+][HCO3-]/[H2CO3]

Where are people exposed to chemicals

People can be exposed to chemicals on farms, in factories, and even in homes.

What kind of scientist would study the affects of acid rain on a marble statue

Geologist.

Possibly a chemist.

Where are chemicals found at work

In every area of work

Which of the following is an example of how research into the effects of a chemical has changed how it is used

Finding out that asbestos is dangerous and limiting its use in building materials

Which of following might a biologist choose to study

The causes of honeybee deaths in beehives

How have chemists changed our daily lives the most

By using what they know to produce new nd helpful products

What is an example of environmental problem caused by chemicals

Televisions that contain dangerous chemicals being thrown in landfills.

Apex

What best explains the type of characterization used in this passage

savage and war-hungry

Which one of the following is an example of a strong base

sodium hydroxide

which of the following is an example of an Arrhenius acid

HI

( true or false ) All chemicals in the lab are to be considereddangerous

All chemicals in the lab are to be considered dangerous. ... Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.

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